中国物理B ›› 2012, Vol. 21 ›› Issue (9): 94210-094210.doi: 10.1088/1674-1056/21/9/094210

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Artificial spectral filtering in dissipative soliton fiber lasers with invisible bandpass filters

孔令杰, 肖晓晟, 杨昌喜   

  1. State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing 100084, China
  • 收稿日期:2011-12-19 修回日期:2012-05-14 出版日期:2012-08-01 发布日期:2012-08-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 61077032).

Artificial spectral filtering in dissipative soliton fiber lasers with invisible bandpass filters

Kong Ling-Jie (孔令杰), Xiao Xiao-Sheng (肖晓晟), Yang Chang-Xi (杨昌喜)   

  1. State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing 100084, China
  • Received:2011-12-19 Revised:2012-05-14 Online:2012-08-01 Published:2012-08-01
  • Contact: Yang Chang-Xi E-mail:cxyang@tsinghua.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 61077032).

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摘要： We numerically study the artificial spectral-filtering effect in dissipative soliton fiber lasers without intracavity spectral filter. It is found that in the dissipative soliton lasers with real saturable absorbers (SAs), the dynamic spectral filtering of the real SAs serves as an artificial spectral filter and contributes to the pulse shaping. While in the dissipative soliton lasers with artificial SAs, such as nonlinear polarization rotation, the spectral filtering introduced by the intracavity polarization-dependent components acts as an artificial spectral filter and shapes the pulses to get mode-locking. The investigation of the artificial spectral-filtering effect reveals the operating mechanisms of the dissipative soliton fiber lasers without visible bandpass filter.

关键词: fiber laser, mode locking

Abstract: We numerically study the artificial spectral-filtering effect in dissipative soliton fiber lasers without intracavity spectral filter. It is found that in the dissipative soliton lasers with real saturable absorbers (SAs), the dynamic spectral filtering of the real SAs serves as an artificial spectral filter and contributes to the pulse shaping. While in the dissipative soliton lasers with artificial SAs, such as nonlinear polarization rotation, the spectral filtering introduced by the intracavity polarization-dependent components acts as an artificial spectral filter and shapes the pulses to get mode-locking. The investigation of the artificial spectral-filtering effect reveals the operating mechanisms of the dissipative soliton fiber lasers without visible bandpass filter.

Key words: fiber laser, mode locking

中图分类号:  (Fiber lasers)

  • 42.55.Wd
42.60.Fc (Modulation, tuning, and mode locking)